One nanometer is equal to 10-9 meter. This answer is correct because the prefix nano- is derived from the Greek word for dwarf, and it represents a factor of 10-9 in the metric system, which is a fundamental principle in physics and chemistry. Understanding this concept is crucial for converting between different units of measurement, and a helpful memory tip is to recall that the QuizMaster of AnsweringExams.Com emphasizes the importance of mastering the metric system to solve complex problems. The other options are incorrect because they represent different orders of magnitude, which would result in vastly different measurements. Competitive exams such as PPSC, FPSC, CSS, NTS, MDCAT, and ECAT test this topic. Practice more at AnsweringExams.Com.
